• Publications
  • Influence
The Leiden ranking 2011/2012: Data collection, indicators, and interpretation
TLDR
The Leiden Ranking 2011/2012 is a ranking of universities based on bibliometric indicators of publication output, citation impact, and scientific collaboration. Expand
  • 305
  • 40
  • PDF
Towards a new crown indicator: Some theoretical considerations
TLDR
We examine the theoretical basis of the normalization mechanism applied in the crown indicator. Expand
  • 327
  • 25
  • PDF
New bibliometric tools for the assessment of national research performance: Database description, overview of indicators and first applications
TLDR
This paper gives an outline of a new bibliometric database based upon all articles published by authors from the Netherlands, and processed during the time period 1980–1993 by the Institute for Scientific Information (ISI) for theScience Citation Index (SCI),Social Science Citation Index(SSCI) and Arts & Humanities Citation Index. Expand
  • 437
  • 12
The Holy Grail of science policy: Exploring and combining bibliometric tools in search of scientific excellence
TLDR
We present a comparative analysis of a number of standard and new indicators of research performance or 'scientific excellence', using techniques applied in studies conducted by CWTS in recent years. Expand
  • 183
  • 11
  • PDF
Some modifications to the SNIP journal impact indicator
TLDR
The SNIP (source normalized impact per paper) indicator is an indicator of the citation impact of scientific journals. Expand
  • 142
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Rivals for the crown: Reply to Opthof and Leydesdorff
TLDR
We reply to the criticism of Opthof and Leydesdorff on the way in which our institute applies journal and field normalizations to citation counts. Expand
  • 105
  • 9
  • PDF
The application of bibliometric analyses in the evaluation of social science research. Who benefits from it, and why it is still feasible
  • T. V. Leeuwen
  • Computer Science, Sociology
  • Scientometrics
  • 14 January 2006
TLDR
The paper discusses an application of bibliometric techniques in the social sciences using the Social Sciences Citation Index for evaluation purposes. Expand
  • 131
  • 9
Interdisciplinary dynamics of modern science: analysis of cross-disciplinary citation flows
The references in research papers provide empirical data on knowledge flows within and between scientific disciplines. Many citations refer to papers that are published in scientific journalsExpand
  • 98
  • 9
Characteristics of journal impact factors: The effects of uncitedness and citation distribution on the understanding of journal impact factors
TLDR
This paper empirically determines two characteristics of actual journal citation distributions, and the percentage of articles with a citation rate above the mean. Expand
  • 59
  • 9
Towards a new crown indicator: an empirical analysis
TLDR
We present an empirical comparison between two normalization mechanisms for citation-based indicators of research performance. Expand
  • 191
  • 8
  • PDF
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